THE COMPENSATION OF THE INFLUENCE OF INDUCTION MOTOR STATOR WINDINGS ASYMMETRY IN THE VECTOR-CONTROL SYSTEMS

V. O. Melnykov, A. P. Kalinov, I. M. Kochurov

Abstract

It is presented the methods for compensation the influence of induction motor stator windings asymmetry on the characteristics of vector-controlled electric drive system. It is shown that the use of proposed control systems at the expense of introduction of additional compensation signals in closed control loops of the motor stator current allows to compensate the variable component of the electromagnetic torque or the variable component of the power consumption. Along with this, the use of the system for compensation of the variable component of the motor electromagnetic torque allows to decrease motor vibrations and the use of the system for compensation of the variable component of active power allows to decrease the heat overloads of the single motor phases, which increases the insulation life of the induction motor stator phases